Improve Team prefix performance

This change vastly improves performance for faction team prefix update
operations.

src/main/java/com/massivecraft/factions/cmd/CmdTag.java

@@ -4,7 +4,7 @@ import com.massivecraft.factions.Conf;
 import com.massivecraft.factions.Faction;
 import com.massivecraft.factions.Factions;
 import com.massivecraft.factions.event.FactionRenameEvent;
-import com.massivecraft.factions.scoreboards.FScoreboard;
+import com.massivecraft.factions.scoreboards.FTeamWrapper;
 import com.massivecraft.factions.struct.Permission;
 import com.massivecraft.factions.util.MiscUtil;
 import org.bukkit.Bukkit;
@@ -74,7 +74,7 @@ public class CmdTag extends FCommand {
             faction.msg("<i>The faction %s<i> changed their name to %s.", fme.getColorTo(faction) + oldtag, myFaction.getTag(faction));
         }
 
-        FScoreboard.applyUpdates(myFaction);
+        FTeamWrapper.updatePrefixes(myFaction);
     }
 
 }

src/main/java/com/massivecraft/factions/cmd/FRelationCommand.java

@@ -3,7 +3,7 @@ package com.massivecraft.factions.cmd;
 import com.massivecraft.factions.Conf;
 import com.massivecraft.factions.Faction;
 import com.massivecraft.factions.event.FactionRelationEvent;
-import com.massivecraft.factions.scoreboards.FScoreboard;
+import com.massivecraft.factions.scoreboards.FTeamWrapper;
 import com.massivecraft.factions.struct.Permission;
 import com.massivecraft.factions.struct.Relation;
 import org.bukkit.Bukkit;
@@ -86,7 +86,7 @@ public abstract class FRelationCommand extends FCommand {
             myFaction.msg("<i>This will have no effect while your faction is peaceful.");
         }
 
-        FScoreboard.applyUpdates(myFaction);
+        FTeamWrapper.updatePrefixes(myFaction);
-        FScoreboard.applyUpdates(them);
+        FTeamWrapper.updatePrefixes(them);
     }
 }

src/main/java/com/massivecraft/factions/listeners/FactionsPlayerListener.java

@@ -4,6 +4,7 @@ import com.massivecraft.factions.*;
 import com.massivecraft.factions.event.FPlayerJoinEvent;
 import com.massivecraft.factions.event.FPlayerLeaveEvent;
 import com.massivecraft.factions.scoreboards.FScoreboard;
+import com.massivecraft.factions.scoreboards.FTeamWrapper;
 import com.massivecraft.factions.scoreboards.sidebar.FDefaultSidebar;
 import com.massivecraft.factions.struct.Permission;
 import com.massivecraft.factions.struct.Relation;
@@ -526,11 +527,11 @@ public class FactionsPlayerListener implements Listener {
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     final public void onFactionJoin(FPlayerJoinEvent event) {
-        FScoreboard.applyUpdatesLater(event.getFaction());
+        FTeamWrapper.applyUpdatesLater(event.getFaction());
     }
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onFactionLeave(FPlayerLeaveEvent event) {
-        FScoreboard.applyUpdatesLater(event.getFaction());
+        FTeamWrapper.applyUpdatesLater(event.getFaction());
     }
 }

src/main/java/com/massivecraft/factions/scoreboards/FScoreboard.java

@@ -1,40 +1,40 @@
 package com.massivecraft.factions.scoreboards;
 
 import com.massivecraft.factions.*;
-import com.massivecraft.factions.zcore.util.TL;
 import org.bukkit.Bukkit;
-import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitRunnable;
 import org.bukkit.scoreboard.DisplaySlot;
 import org.bukkit.scoreboard.Scoreboard;
-import org.bukkit.scoreboard.Team;
 
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Set;
 
 public class FScoreboard {
-    private static Map<FPlayer, FScoreboard> fscoreboards = new HashMap<FPlayer, FScoreboard>();
+    private static final Map<FPlayer, FScoreboard> fscoreboards = new HashMap<FPlayer, FScoreboard>();
 
     private final Scoreboard scoreboard;
     private final FPlayer fplayer;
     private final BufferedObjective bufferedObjective;
-    private final Map<Faction, Team> factionTeams = new HashMap<Faction, Team>();
-    private int factionTeamPtr;
     private FSidebarProvider defaultProvider;
     private FSidebarProvider temporaryProvider;
     private boolean removed = false;
 
     public static void init(FPlayer fplayer) {
-        fscoreboards.put(fplayer, new FScoreboard(fplayer));
+        FScoreboard fboard = new FScoreboard(fplayer);
+        fscoreboards.put(fplayer, fboard);
+
         if (fplayer.hasFaction()) {
-            FScoreboard.applyUpdates(fplayer.getFaction());
+            FTeamWrapper.applyUpdates(fplayer.getFaction());
         }
+        FTeamWrapper.track(fboard);
     }
 
     public static void remove(FPlayer fplayer) {
-        fscoreboards.remove(fplayer).removed = true;
+        FScoreboard fboard = fscoreboards.remove(fplayer);
+
+        fboard.removed = true;
+        FTeamWrapper.untrack(fboard);
     }
 
     public static FScoreboard get(FPlayer fplayer) {
@@ -45,33 +45,22 @@ public class FScoreboard {
         return fscoreboards.get(FPlayers.i.get(player));
     }
 
-    public static void applyUpdatesLater(final Faction faction) {
-        Bukkit.getScheduler().runTask(P.p, new Runnable() {
-            @Override
-            public void run() {
-                applyUpdates(faction);
-            }
-        });
-    }
-
-    public static void applyUpdates(Faction faction) {
-        for (FScoreboard fscoreboard : fscoreboards.values()) {
-            fscoreboard.updateFactionTeam(faction);
-        }
-    }
-
     private FScoreboard(FPlayer fplayer) {
         this.fplayer = fplayer;
         this.scoreboard = Bukkit.getScoreboardManager().getNewScoreboard();
         this.bufferedObjective = new BufferedObjective(scoreboard);
 
-        for (Faction faction : Factions.i.get()) {
-            updateFactionTeam(faction);
-        }
-
         fplayer.getPlayer().setScoreboard(scoreboard);
     }
 
+    protected FPlayer getFPlayer() {
+        return fplayer;
+    }
+
+    protected Scoreboard getScoreboard() {
+        return scoreboard;
+    }
+
     public void setSidebarVisibility(boolean visible) {
         bufferedObjective.setDisplaySlot(visible ? DisplaySlot.SIDEBAR : null);
     }
@@ -128,50 +117,4 @@ public class FScoreboard {
             bufferedObjective.flip();
         }
     }
-
-    public void updateFactionTeam(Faction faction) {
-        Team team = factionTeams.get(faction);
-        Set<FPlayer> factionMembers = faction.getFPlayers();
-
-        if (!Factions.i.get().contains(faction)) {
-            // Faction was disbanded
-            if (team != null) {
-                factionTeams.remove(faction);
-                team.unregister();
-            }
-            return;
-        }
-
-        if (team == null) {
-            team = scoreboard.registerNewTeam("faction_" + (factionTeamPtr++));
-            factionTeams.put(faction, team);
-        }
-
-        for (OfflinePlayer player : team.getPlayers()) {
-            if (!player.isOnline() || !factionMembers.contains(FPlayers.i.get(player.getPlayer()))) {
-                // Player is offline or no longer in faction
-                team.removePlayer(player);
-            }
-        }
-
-        for (FPlayer fmember : factionMembers) {
-            if (!fmember.isOnline()) {
-                continue;
-            }
-            if (!team.hasPlayer(fmember.getPlayer())) {
-                // Scoreboard team doesn't have player; add him/her
-                team.addPlayer(fmember.getPlayer());
-            }
-        }
-
-        // Update faction prefix
-        if(P.p.getConfig().getBoolean("scoreboard.default-prefixes", false)) {
-            String prefix = TL.DEFAULT_PREFIX.toString();
-            prefix = prefix.replace("{relationcolor}", faction.getRelationTo(this.fplayer).getColor().toString());
-            prefix = prefix.replace("{faction}", faction.getTag().substring(0, Math.min("{faction}".length() + 16 - prefix.length(), faction.getTag().length())));
-            if (team.getPrefix() == null || !team.getPrefix().equals(prefix)) {
-                team.setPrefix(prefix);
-            }
-        }
-    }
 }

src/main/java/com/massivecraft/factions/scoreboards/FTeamWrapper.java

@@ -0,0 +1,166 @@
+package com.massivecraft.factions.scoreboards;
+
+import com.massivecraft.factions.*;
+import com.massivecraft.factions.zcore.util.TL;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.scoreboard.Scoreboard;
+import org.bukkit.scoreboard.Team;
+
+import java.util.*;
+
+public class FTeamWrapper {
+    private static final Map<Faction, FTeamWrapper> wrappers = new HashMap<Faction, FTeamWrapper>();
+    private static final List<FScoreboard> tracking = new ArrayList<FScoreboard>();
+    private static int factionTeamPtr;
+
+    private final Map<FScoreboard, Team> teams = new HashMap<FScoreboard, Team>();
+    private final String teamName;
+    private final Faction faction;
+    private final Set<UUID> members = new HashSet<UUID>();
+
+    public static void applyUpdatesLater(final Faction faction) {
+        Bukkit.getScheduler().runTask(P.p, new Runnable() {
+            @Override
+            public void run() {
+                applyUpdates(faction);
+            }
+        });
+    }
+
+    public static void applyUpdates(Faction faction) {
+        FTeamWrapper wrapper = wrappers.get(faction);
+        Set<FPlayer> factionMembers = faction.getFPlayers();
+
+        if (wrapper != null && !Factions.i.get().contains(faction)) {
+            // Faction was disbanded
+            wrapper.unregister();
+            wrappers.remove(faction);
+            return;
+        }
+
+        if (wrapper == null) {
+            wrapper = new FTeamWrapper(faction);
+            wrappers.put(faction, wrapper);
+        }
+
+        for (OfflinePlayer player : wrapper.getPlayers()) {
+            if (!player.isOnline() || !factionMembers.contains(FPlayers.i.get(player))) {
+                // Player is offline or no longer in faction
+                wrapper.removePlayer(player);
+            }
+        }
+
+        for (FPlayer fmember : factionMembers) {
+            if (!fmember.isOnline()) {
+                continue;
+            }
+
+            // Scoreboard might not have player; add him/her
+            wrapper.addPlayer(fmember.getPlayer());
+        }
+
+        wrapper.updatePrefixes();
+    }
+
+    public static void updatePrefixes(Faction faction) {
+        wrappers.get(faction).updatePrefixes();
+    }
+
+    protected static void track(FScoreboard fboard) {
+        tracking.add(fboard);
+        for (FTeamWrapper wrapper : wrappers.values()) {
+            wrapper.add(fboard);
+        }
+    }
+
+    protected static void untrack(FScoreboard fboard) {
+        tracking.remove(fboard);
+        for (FTeamWrapper wrapper : wrappers.values()) {
+            wrapper.remove(fboard);
+        }
+    }
+
+
+    private FTeamWrapper(Faction faction) {
+        this.teamName = "faction_" + (factionTeamPtr++);
+        this.faction = faction;
+
+        for (FScoreboard fboard : tracking) {
+            add(fboard);
+        }
+    }
+
+    private void add(FScoreboard fboard) {
+        Scoreboard board = fboard.getScoreboard();
+        Team team = board.registerNewTeam(teamName);
+        teams.put(fboard, team);
+
+        for (OfflinePlayer player : getPlayers()) {
+            team.addPlayer(player);
+        }
+
+        updatePrefix(fboard);
+    }
+
+    private void remove(FScoreboard fboard) {
+        teams.remove(fboard).unregister();
+    }
+
+    private void updatePrefixes() {
+        if (P.p.getConfig().getBoolean("scoreboard.default-prefixes", false)) {
+            for (FScoreboard fboard : teams.keySet()) {
+                updatePrefix(fboard);
+            }
+        }
+    }
+
+    private void updatePrefix(FScoreboard fboard) {
+        if (P.p.getConfig().getBoolean("scoreboard.default-prefixes", false)) {
+
+            for (Map.Entry<FScoreboard, Team> entry : teams.entrySet()) {
+                FPlayer fplayer = entry.getKey().getFPlayer();
+                Team team = entry.getValue();
+
+                String prefix = TL.DEFAULT_PREFIX.toString();
+                prefix = prefix.replace("{relationcolor}", faction.getRelationTo(fplayer).getColor().toString());
+                prefix = prefix.replace("{faction}", faction.getTag().substring(0, Math.min("{faction}".length() + 16 - prefix.length(), faction.getTag().length())));
+                if (team.getPrefix() == null || !team.getPrefix().equals(prefix)) {
+                    team.setPrefix(prefix);
+                }
+            }
+        }
+    }
+
+    private void addPlayer(OfflinePlayer player) {
+        if (members.add(player.getUniqueId())) {
+            for (Team team : teams.values()) {
+                team.addPlayer(player);
+            }
+        }
+    }
+
+    private void removePlayer(OfflinePlayer player) {
+        if (members.remove(player.getUniqueId())) {
+            for (Team team : teams.values()) {
+                team.removePlayer(player);
+            }
+        }
+    }
+
+    private Set<OfflinePlayer> getPlayers() {
+        Set<OfflinePlayer> ret = new HashSet<OfflinePlayer>();
+        for (UUID uuid : members) {
+            ret.add(Bukkit.getOfflinePlayer(uuid));
+        }
+        return ret;
+    }
+
+    private void unregister() {
+        for (Team team : teams.values()) {
+            team.unregister();
+        }
+        teams.clear();
+    }
+}
+